Đáp án + Giải thích các bước giải:

C1:

$a\big)$

$2K+2H_2O\to 2KOH+H_2$

$CaO+H_2O\to Ca(OH)_2$

$P_2O_5+3H_2O\to 2H_3PO_4$

$BaO+H_2O\to Ba(OH)_2$

$b\big)$

$2K+2HCl\to 2KCl+H_2$

$CaO+2HCl\to CaCl_2+H_2O$

$CuO+2HCl\to CuCl_2+H_2O$

$ZnO+2HCl\to ZnCl_2+H_2O$

$2Al+6HCl\to 2AlCl_3+3H_2$

$Fe+2HCl\to FeCl_2+H_2$

$BaO+2HCl\to BaCl_2+H_2O$

$Zn+2HCl\to ZnCl_2+H_2$

$c\big)$

$2K+H_2SO_4\to K_2SO_4+H_2$

$CaO+H_2SO_4\to CaSO_4+H_2O$

$CuO+H_2SO_4\to CuSO_4+H_2O$

$ZnO+H_2SO_4\to ZnSO_4+H_2O$

$2Al+3H_2SO_4\to Al_2(SO_4)_3+3H_2$

$Fe+H_2SO_4\to FeSO_4+H_2$

$BaO+H_2SO_4\to BaSO_4\downarrow+H_2O$

$Zn+H_2SO_4\to ZnSO_4+H_2$

C2:

Oxide:

$CuO$ đồng II oxit

$P_2O_5$ điphotpho pentaoxit

$SO_3$ lưu huỳnh trioxit

$K_2O$ kali oxit

Acid:

$H_2SO_4$ axit sunfuric

$HNO_3$ axit nitric

$HCl$ axit clohiđric

Base:

$NaOH$ natri hiđroxit

$Fe(OH)_2$ sắt II hiđroxit

$Al(OH)_3$ nhôm hiđroxit

$Ca(OH)_2$ canxi hiđroxit

Muối:

$NaHCO_3$ natri hiđrocacbonat

$Al_2(SO_4)_3$ nhôm sunfat

$Ca(H_2PO_4)_2$ canxi đihiđrophotphat

$K_2HPO_4$ kali hiđrophotphat

Đáp án:

Giải thích các bước giải:

$1)$

$a)$

$2K + 2H_2O$ $\rightarrow$ $2KOH + H_2$

$CaO + H_2O$ $\rightarrow$ $Ca(OH)_2$

$P_2O_5 + 3H_2O$ $\rightarrow$ $2H_3PO_4$

$BaO + H_2O$ $\rightarrow$ $Ba(OH)_2$

$b)$

$2K + 2HCl$ $\rightarrow$ $2KCl + H_2$

$CaO + 2HCl$ $\rightarrow$ $CaCl_2 + H_2O$

$CuO + 2HCl$ $\rightarrow$ $CuCl_2 + H_2O$

$ZnO + 2HCl$ $\rightarrow$ $ZnCl_2 + H_2$

$2Al + 6HCl$ $\rightarrow$ $2AlCl_3 + 3H_2$

$Fe + 2HCl$ $\rightarrow$ $FeCl_2 + H_2$

$BaO + 2HCl$ $\rightarrow$ $BaCl_2 + H_2O$

$Zn + 2HCl$ $\rightarrow$ $ZnCl_2 + H_2$

$c)$ 

$2K + H_2SO_4$ $\rightarrow$ $K_2SO_4 + H_2$

$CaO + H_2SO_4$ $\rightarrow$ $CaSO_4 + H_2O$

$CuO + H_2SO_4$ $\rightarrow$ $CuSO_4+ H_2O$

$ZnO + H_2SO_4$ $\rightarrow$ $ZnSO_4 + H_2$

$2Al + 3H_2SO_4$ $\rightarrow$ $Al_2(SO_4)_3+ 3H_2$

$Fe + H_2SO_4$ $\rightarrow$ $FeSO_4 + H_2$

$BaO + H_2SO_4$ $\rightarrow$ $BaSO_4 + H_2O$

$Zn + H_2SO_4$ $\rightarrow$ $ZnSO_4 + H_2$

$2)$

- Oxit axit:

+ $P_2O_5$ : Điphotpho pentaoxit

+ $SO_3$ : Lưu huỳnh trioxit

- Oxit bazơ:

+ $CuO$ : Đồng (II) oxit

+ $K_2O$ : Kali oxit

- Axit:
+ $H_2SO_4$ : Axit sunfuric

+ $HCl$ : Axit clohiđric

+ $HNO_3$ : Axit nitric

- Bazơ:

+ $NaOH$ : Natri hiđroxit

+ $Fe(OH)_2$ : Sắt (II) hiđroxit

+ $Al(OH)_3$ : Nhôm hiđroxit

+ $Ca(OH)_2$ : Canxi hiđroxit

- Muối:
+ $NaHCO_3$ : Natri hiđrocacbonat

+ $Al_2(SO_4)_3$ : Nhôm sunfat

+ $Ca(H_2PO_4)_2$: Canxi đihiđrophotphat

+ $K_3HPO_4$: Kali hiđrophotphat